Tire.



JAMES H. CHRISTIAN, 0F DETROIT, MICHIGAN," ASSIG-NOR TO PERFECTION TIRE @L RUBBER CO., A CORPORATION OF SOUTH DAKOTA.

TIRE.

. Specification of Letters Patent.

l Patented June 5, 1917;

` Application led February 8, 1915. Serial No. 6,739.

reference being had therein to the accompanying drawings.

This invention relates to the art of manufacturing tires for automobile and other vehicles, and has special reference to an improvement in the construction of such tires,

whereby the same shall possess, to the highest degree attainable, a maximum strength, f

integrity, resiliency and endurance, together with maximum resistance against perforation.

Another and distinct object of this invention is to provide a novel construction of vehicle tire built up in such a manner as to not only effect a great saving of rubber,l but at the saine time to secure an exceptionally thick taut and cushioned body and tread, producing a casing of great strength and wearing capacity, and particularly obviating the possibility of blow outs resulting from high internal pneumatic pressure, and also, zit-times, from the injury termed stone bruise.

One of the necessities of the art of tire construction is to provide surfaces or laminations that will admit, receive and retain rubber to the greatest penetrating or bonding limit,thereby binding, as thoroughly as can be done, the whole tire when completed or .vulcanizedinto one homogeneous integral body, and at the same time to have the tire structure built up in a manner and of a 'matear, an

terial that Will give the greatest strength and flexibility. These necessities are entirely su plied by the present invention with the4 resullt of providing a construction which will produce a tire body or carcass and tire tread ca able of withstanding the wear, strain imposed upon pneumatic tires in the ordinary use thereof upon motor and other vehicles.

A further object of this invention is to provide an breaker strip for tires that will not deteriorate by the action. of heat or cut into the body of the tire, but will increase the tensile strength of the entire structure. I

-With these and many other objects in eective reinforcement or` view, which will more readily appear as the nature of the invention is better understood,

the saine consists in the novel construction, combination and arrangement of parts hereinafter` more fully described illustrated, and claimed.

Reference will now be had to the draw# ings, wherein-- Figure 1 is a cross sectional vievvof thev Fig. 3 is an enlarged detail view of an interwoven element of the breaker-strip, and' Fig. L is a plan of a portion of the interwoven element. I

In a tire which embodies the leading characteristics of my inventionv therefis' Fig. 2 is a similar view of a breaker strip;- i

necessarily present a carcass or body l. Thev body or carcass 1 is composed oflayers or laminations of durable canvas. The ed es of the body or carcass terminate in cleric er or straight side members 3.

On the body or carcass l 1S a breakerstrip composed of cold rolled Woven Wire and as# bestos or sea island cotton, or acombinatlon of all three. The cold rolled Woven Wireis practically impenetratable and thestrangsof wire, designated 4, are incased with@`v ei' asbestos or sea island cotton, asbest shown in Fig. 3. The asbestos is not susceptible to cotton adds strength and H exibility vto the strip and coperates with the strands of The pure rubberfis designated 5 and Jfully et heat and when sea island cotton is used the imv incloses the interwoven structure. It pro` vides a sheet having tapering edges 6 that extend in proximity to the yclencher or straight side members 3 of the carcass 1.

The breaker strip thus produced is shown in Fig. 2 as a unitary structure and when 1n such form it can be easily placed upon the carcass 1 and then inclosedby a rubber tread 7. i a g The fabricated or laminated structure thus produced is now ready; to be vulcan-4 ized and when subjected to 'such action, the pure rubber 5 impregnatcs the carcass 1 and joins the breaker strip to the carcass and the tread 7, in such a manner as to provide a homogeneous integral body. The pure rubber inclosing the breaker strip notl only l serves as a binder but asa yieldable andv elasy tic connection between the carcass and the I treed, thereby edding a degree of resiliency to the tire that will eoperate with eninner tube in inereusingthe road worthiness of` the tire structure.

By reference to Flg. 4 1t will be'L noted that the pure rubber enters the interstices ofy the .interwoven strip, consequently the indiviffluel strands of the strip are embedded in the rubber und firmly heldthereby.

From the foregoing it will be observed* that I have devised a unitary breaker strip that een be easily and quickly installed be` tween the fare-ass and treed and vulcanized therein te provide a tire that possesses many advantages over the present type'o vehicle tire.

In a tire, u eereess e tread, e rubber cushion between saidfeareess and said treed and uniting the same to form en outer cae ing, layers of wire in seid rubber eushion With each Wire inclosed by e' heat resisting materiel, the inclosedy Wires being interwoven@ with spaces between yconfronting faces thereof so that the rubber from which 'the cushion is kformed may enter the spaces between theinclosed Wires and yieldably Cushion said Wires relative to one another, seid embedded Wires terminating at e point removed fromthe side edges of the rubberV cushion seras to preclude cutting therethrough When said 4easing is subjected to pressure.

In testlmonywhereof kI alx my signir- 'i 

